Boards keep time to within 50 ns
-- Test & Measurement World, 9/1/2008
When you need precise timing in a PC-based data-acquisition system, you can add either the bc635PCI-V2 or the GPS-referenced bc637PCI-V2 time and frequency processor board to any PCI slot. The cards provide timing that is accurate to within 50 ns of coordinated universal time (UTC), and they also provide extensive time-code generation and translation based on IRIG A, B, G, E; IEEE 1344; NASA 36; XR3; or 2137 in both amplitude-modulated and DC-level-shift formats.
The boards support more than 30 input and output time-code variations with the ability to process them in parallel. They also provide a periodic pulse-rate generator based on direct digital synthesis that is capable of 0.0000001 pulses per second (pps) to 100 Mpps. The boards also include a battery-backed real-time clock. Software support includes Windows, Solaris, and Linux.
Price range: $1295–$3095. Symmetricom, www.symmetricom.com.
